|[List of appearances]|
Grimfax (referred known as King Grimfax and Lord Grimfax) is a high-ranking Blizzard Warrior that leads the battles.
Grimfax is seen leading the Blizzard Samurai out of the Castle of Ice after being ordered by General Vex to destroy the villagers harboring the ninja.
Grimfax leads the Blizzard Samurai to battle against the Great Lake.
He tries to attack Kai, but the rest of the Ninja save him. They prompt him to call for surrender, but Grimfax sees the Hearth Fire and is able to take it out before calling for retreat.